Double-seal straight-through structure

Abstract

The utility model discloses a double-seal straight-through structure. The double-seal straight-through structure comprises a main body pipe section, the main body pipe section comprises an outer pipeline and an inner pipeline connected to the inner surface of the outer pipeline through a plurality of fixing blocks, the inner pipeline is provided with an inner diameter matched with a to-be-connected pipeline, the upper end and the lower end of the main body pipe section are connected with the to-be-connected pipeline through two groups of flanges respectively, the first group of flanges is fixedly connected with the outer pipeline, and meanwhile, the second group of flanges are fixedly connected with the outer pipeline. The flanges and the outer sealing material are tightly pressed on the outer sides of the first group of flanges through bolts and nuts, so that sealing is achieved, the second group of flanges are fixedly connected with the inner pipeline, and similarly, the flanges and the inner sealing material are tightly pressed on the outer sides of the second group of flanges through bolts and nuts, so that double-layer sealing is achieved. According to the double-seal straight-through structure, double guarantees are formed through independent arrangement of the inner-layer seal and the outer-layer seal, the safety of a pipeline system is remarkably improved, and the safety accident risk caused by medium leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline connection, and more particularly to a double-sealed straight-through structure. Background Art

[0002] In existing technologies, the safety and reliability of pipeline systems are crucial in the field of pipeline technology, particularly in industries such as chemicals, pharmaceuticals, food, coatings, paints, basic chemicals, oil, and natural gas. Traditional pipeline systems typically utilize a single-layer seal design. While this design can meet basic sealing requirements to a certain extent, it carries the risk of media leakage, especially in environments with high pressure, high temperature, or corrosive media. If the seal fails, it not only causes media leakage but can also pollute the environment and even cause safety accidents.

[0003] To address this issue, several improvements have emerged in the prior art. For example, some piping systems employ more durable sealing materials or optimize sealing structures to improve sealing effectiveness. However, these improvements still have limitations. For example, some sealing materials are prone to aging or failure in high temperatures or corrosive media, while complex sealing structures can increase manufacturing costs and make maintenance more difficult.

[0004] Therefore, how to provide a more advanced pipeline sealing structure to further improve the safety and reliability of the pipeline system is a problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of this, the utility model provides a double-seal straight-through structure which forms a double protection by independently setting the inner seal and the outer seal. Even if the inner seal fails, the outer seal can effectively prevent the medium from leaking.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] The utility model provides a double-sealed straight-through structure, comprising a main pipe section;

[0008] The main pipe section includes an outer pipe and an inner pipe connected to the inner surface of the outer pipe by a number of fixing blocks. The inner pipe is provided with an inner diameter matching the pipe to be connected. The upper and lower ends of the main pipe section are connected to the pipe to be connected by an upper flange and a lower flange respectively. The upper flange includes a first set of flanges and a second set of flanges. The first set of flanges is above the second set of flanges. The first set of flanges is fixedly connected to the outer pipe. At the same time, the outer side of the first set of flanges is tightly pressed against the outer sealing material by bolts and nuts to achieve sealing. The second set of flanges is fixedly connected to the inner pipe. Similarly, the outer side of the second set of flanges is tightly pressed against the inner sealing material by bolts and nuts to achieve double-layer sealing.

[0009] Preferably, the main pipe section is made of high-strength PE material, such as high-density polyethylene or ultra-high molecular weight polyethylene.

[0010] Preferably, a plurality of fixing blocks are fixedly connected to the inner surface of the outer pipe. Specifically, these fixing blocks are fixed to the inner wall of the outer pipe by welding or high-strength bolts.

[0011] Preferably, both ends of the body pipe section are connected to an upper flange and a lower flange respectively for connection with adjacent pipelines, and bolt holes are provided on the upper flange and the lower flange to facilitate quick installation and disassembly.

[0012] As can be seen from the above technical solution, compared with the existing technology, the present invention provides a dual-seal straight-through structure. Through the independent arrangement of the inner and outer seals, dual protection is achieved. Even if the inner seal fails, the outer seal can effectively prevent media leakage. The selection of inner and outer sealing materials and structural design can adapt to different media, pressure, and temperature conditions, ensuring sealing performance under various operating conditions. The dual-seal structure significantly improves the safety of the pipeline system and reduces the risk of safety accidents caused by media leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0014] Figure 1 The accompanying drawing is a schematic diagram of the main structure of the utility model from a top view.

[0015] Figure 2 The accompanying drawing is a schematic diagram of the double-layer structure inside the main body of the present invention. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] The utility model provides a double-sealed straight-through structure, comprising a main pipe section 100;

[0018] The main pipe section includes an outer pipe 1 and an inner pipe 2 connected to the inner surface of the outer pipe 1 through several fixing blocks 3. The inner pipe 2 is provided with an inner diameter matching the pipe to be connected. The upper and lower ends of the main pipe section 100 are connected to the pipe to be connected through an upper flange 4 and a lower flange 5 respectively. The upper flange 4 includes a first set of flanges 402 and a second set of flanges 401. The first set of flanges 402 is above the second set of flanges 401. The first set of flanges 402 is fixedly connected to the outer pipe 1. At the same time, the outer side of the first set of flanges 402 is tightly pressed against the outer sealing material by bolts and nuts to achieve sealing. The second set of flanges 401 is fixedly connected to the inner pipe 2. Similarly, the outer side of the second set of flanges 401 is tightly pressed against the inner sealing material by bolts and nuts to achieve double-layer sealing.

[0019] Furthermore, the main pipe section 100 is made of high-strength PE material, such as high-density polyethylene or ultra-high molecular weight polyethylene. Such materials have excellent corrosion resistance, wear resistance and certain elasticity, and the inner pipe has an inner diameter that matches the pipe to be connected.

[0020] Furthermore, the outer pipe 1 serves as a protective layer for the inner pipe 2 .

[0021] Furthermore, a plurality of fixing blocks 3 are fixedly connected to the inner surface of the outer pipe 1. Specifically, these fixing blocks 3 are fixed to the inner wall of the outer pipe 1 by welding or high-strength bolts, ensuring a tight connection and synchronous deformation between the inner pipe 2 and the outer pipe 1. The shape of the fixing blocks 3 is generally determined by considering the stress conditions and fixing method. Specifically, they are block-shaped, sheet-shaped, or wedge-shaped to better match the inner pipe 2 and the outer pipe 1 and withstand forces from all directions of the fluid inside the pipe.

[0022] Furthermore, both ends of the body pipe section 100 are respectively connected to an upper flange 4 and a lower flange 5 for connection to adjacent pipelines. Bolt holes are provided on the upper flange 4 and the lower flange 5 for easy and quick installation and disassembly.

[0023] This new double-seal, straight-through structure provides dual protection through the independent design of inner and outer seals. Even if the inner seal fails, the outer seal can effectively prevent media leakage. The selection of inner and outer sealing materials and structural design can adapt to different media, pressure, and temperature conditions, ensuring sealing performance under various operating conditions. The double-seal structure significantly improves the safety of the pipeline system and reduces the risk of safety accidents caused by media leakage.

[0024] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-seal straight-through structure, characterized in that: include: Main pipe section (100); The main pipe section comprises an outer pipe (1) and an inner pipe (2) connected to the inner surface of the outer pipe (1) through a plurality of fixing blocks (3); the inner pipe (2) is provided with an inner diameter matching the pipe to be connected; the upper and lower ends of the main pipe section (100) are connected to the pipe to be connected through an upper flange (4) and a lower flange (5), respectively; the upper flange (4) comprises a first set of flanges (402) and a second set of flanges (401); the first set of flanges (402) is above the second set of flanges (401); the first set of flanges (402) is fixedly connected to the outer pipe (1); at the same time, the outer side of the first set of flanges (402) is tightly pressed against the outer sealing material by bolts and nuts, thereby achieving sealing; the second set of flanges (401) is fixedly connected to the inner pipe (2); similarly, the outer side of the second set of flanges (401) is tightly pressed against the inner sealing material by bolts and nuts, thereby achieving double-layer sealing.

2. The double-seal straight-through structure according to claim 1, characterized in that: The main pipe section (100) is made of high-strength PE material, such as high-density polyethylene or ultra-high molecular weight polyethylene.

3. The double-seal straight-through structure according to claim 1, characterized in that: The inner surface of the outer pipe (1) is fixedly connected to a plurality of fixing blocks (3); specifically, the fixing blocks (3) are fixed to the inner wall of the outer pipe (1) by welding or high-strength bolts.

4. The double-seal straight-through structure according to claim 1, characterized in that: The two ends of the main pipe section (100) are respectively connected to an upper flange (4) and a lower flange (5) for connection with adjacent pipelines. Bolt holes are provided on the upper flange (4) and the lower flange (5) for easy installation and removal.

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